<template>
  <el-dialog
    width="500px"
    title="员工导入"
    :visible="showExcelDialog"
    @close="$emit('update:showExcelDialog', false)"
  >
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx, .xls"
          @change="uploadChange"
        >
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text" @click="exportTemplate">下载导入模板</el-button>
          <span>将文件拖到此处或
            <el-button type="text" @click="uploadFile">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button size="mini" type="primary" @click="$emit('update:showExcelDialog', false)">取消</el-button>
    </el-row>
  </el-dialog>
</template>
<script>
import { exportTemplateAPI, upLoadEmployeeAPI } from '@/api'
import FileSaver from 'file-saver'

export default {
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    async exportTemplate() {
      const blob = await exportTemplateAPI()
      FileSaver.saveAs(blob, '员工导入模板.xlsx')
    },
    uploadFile() {
      this.$refs['excel-upload-input'].click()
    },
    // async uploadChange(event) {
    //   console.log(event.target.files)
    //   if (event.target.files.length) {
    //     try {
    //       const file = event.target.files[0] // 待上传文件的excel 文件对象
    //       const data = new FormData() // 空的formData
    //       // data file => 文件对象
    //       data.append('file', file)
    //       // 'Content-Type': 'multipart/form-data' => FormData
    //       await upLoadEmployeeAPI(data)
    //       // 说明上传成功了
    //       this.$message.success('上传excel成功')
    //       this.$emit('success') // 上传成功
    //       this.$emit('update:showExcelDialog', false) // 关闭弹层
    //       // this.$refs['excel-upload-input'].value = '' // 成功了 把文件选择器清空
    //     } catch (error) {
    //     //   this.$message.error(error.message)
    //       // this.$refs['excel-upload-input'].value = ''
    //     } finally {
    //       this.$refs['excel-upload-input'].value = '' // 不论成功与否 都把文件选择器清掉
    //       // 因为上传成功了 文件没有必要留着了
    //       // 失败了 更没有必要留着-在浏览器上的input type=file
    //       // 浏览器 没有办法删除本地文件的
    //     }
    //   }
    // }
    async uploadChange(event) {
      console.log(event.target.files)
      if (event.target.files.length) {
        try {
          const file = event.target.files[0]
          const data = new FormData()
          data.append('file', file)
          await upLoadEmployeeAPI(data)
          this.$message.success('导入成功')
          this.$emit('success')
          this.$emit('update:showExcelDialog', false)
        } catch (error) {
        //   this.$message.error(error.message)
        } finally {
          this.$refs['excel-upload-input'].value = ''
        }
      }
    }
  }
}
</script>

  <style scoped lang="scss">
      .upload-excel {
        display: flex;
        justify-content: center;
        margin: 20px;
        width: 360px;
        height: 180px;
        align-items: center;
        color: #697086;
        .excel-upload-input {
          display: none;
          z-index: -9999;
        }
        .btn-upload,
        .drop {
          border: 1px dashed #dcdfe6;
          width: 100%;
          height: 100%;
          text-align: center;
          line-height: 160px;
          border-radius: 8px;
          display: flex;
          flex-direction: column;
          justify-content: center;
        }
        .drop {
          line-height: 40px;
          color: #bbb;
          i {
            font-size: 60px;
            display: block;
            color: #c0c4cc;
          }
        }
      }
  </style>
